# is this a pentium, or a bug

Ron Stanions (chaeon@roc.clawpaw.com)
Thu, 7 Mar 1996 13:54:02 PST

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    I doubt his problem is related to the fpu bug in the pentium, since my =
    system
    has that fpu bug too, and I'm not getting this kind of problem.=20

    ----------
    From:  H. Peter Anvin[SMTP:hpa@trantor.zytor.com]
    Sent:  Thursday, March 07, 1996 3:08 PM
    To:  local-moo@terminus.zytor.com; moo-cows@parc.xerox.com
    Subject:  Re: is this a pentium, or a bug

    Followup to:  <v02130501ad64bbd271d6@[194.109.20.133]>
    By author:    kais@dds.nl (Kai Storbeck)
    In newsgroup: local.moo
    >
    > Hya....i was testing the floats...
    >=20
    > ;10.00/4.0
    > =3D3D> 2.50000000052154
    > [used 4 ticks, 0 seconds.]
    > ;1.0/2.0
    > =3D3D> 0.500000000521541
    > [used 4 ticks, 0 seconds.]
    >=20
    > Not exactly what i expected.... =3D3D)
    > This is a pentium i'm running on, running linux, my server is 1.8.0b3.
    > Is this a pentium (bug) or a server bug?
    >=20

    Check /proc/cpuinfo to see if you have the Pentium bug (if so, get a
    new CPU from Intel for free.)

    However, I take it you're running an a.out system with libc 4.5.26 or
    earlier; this is a well-known libc bug.  I'd suggest upgrade to ELF;
    this bug is fixed in libc 5.

    	-hpa
    --=20
    PGP public key available - finger hpa@zytor.com
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